On Monday, November 27, 2017 at 2:23:53 PM UTC, Andy Burns wrote:
Huge wrote:

no-one gives a **** about FENSA.
They're trivial to forge.

Probably less trivial to forge the entry on the FENSA website

I just said "No, we don't have them all" which seemed to satisfy
everyone.
Which is what I plan to do, armed with photos showing there were lintels
in place above them, and that I did fit cavity closers where needed.

I imagine I have lintels up there, but if the building has been resting on a window frame for the last 100 years, I'm in trouble anyway.